How many square feet are you talking about? Small to me is 1 acre, because in my area its the smallest yard around. I would say "lawn service starting at XXXX per cut" or something along those lines. Giving a flat price("lawn service for $35 a week") will get you in a bind real fast. Bid every job for what you feel it is worth, and the only reason I would ever quote a general price for an area is if it was a cookie cutter neighborhood with equal size lots and houses all through it.